Damon reasoned that basically 100% of all new vampires end up murdering someone accidentally so Elena should just go ahead and break the joint, joint d’étanchéité on that and get it out of the way lest she bottle up the urge and turn into a ripper down the line.
No matter where toi stand on the whole Elena/Damon/Stefan triangle this moment has been building all season and needed to happen as it would be a disservice to these characters and the story if it didn't.
Listen, everyone knows I’m rooting for Stefan and Elena. But that doesn’t make me some dramatic weirdo who just cannot stand Damon and Elena together. Make it happen. I couldn’t care less. But do it in a way in which when I watch it